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Commit d6e75df4 authored by Jun Lei's avatar Jun Lei Committed by Alex Deucher
Browse files

drm/amd/display: add new dc debug structure to track debug data 



[why]
Some DTN tests still failing @ 2%  Need to reduce.

[how]
add instrumentation code to driver so we can get more information from failed runs.

Signed-off-by: default avatarJun Lei <Jun.Lei@amd.com>
Reviewed-by: default avatarTony Cheng <Tony.Cheng@amd.com>
Acked-by: default avatarLeo Li <sunpeng.li@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 68199bd1

drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c

+3 −0
Original line number Diff line number Diff line
@@ -1028,6 +1028,9 @@ enum link_training_result dc_link_dp_perform_link_training( 
			lt_settings.lane_settings[0].VOLTAGE_SWING,

			lt_settings.lane_settings[0].PRE_EMPHASIS);



	if (status != LINK_TRAINING_SUCCESS)

		link->ctx->dc->debug.debug_data.ltFailCount++;



	return status;

}

drivers/gpu/drm/amd/display/dc/dc.h

+5 −0
Original line number Diff line number Diff line
@@ -259,6 +259,11 @@ struct dc_debug { 
	bool scl_reset_length10;

	bool hdmi20_disable;



	struct {

		uint32_t ltFailCount;

		uint32_t i2cErrorCount;

		uint32_t auxErrorCount;

	} debug_data;

};

struct dc_state;

struct resource_pool;